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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1345 (Power Take-Off System) >> Diagnostic Information and Procedures >> DTC P0641 >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground Open or High Resistance Short to Voltage Signal Performance
5-Volt Reference Circuit P0641 1 P0641 P0641
1. Power Take-Off (PTO) Does Not Engage
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